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Strange meson production at high density and temperature

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Strange meson production at high density and temperature

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dc.contributor.author	Tolós Rigueiro, Laura
dc.contributor.author	Cabrera Urbán, Daniel
dc.contributor.author	Molina Peralta, Raquel
dc.contributor.author	Oset Báguena, Eulogio
dc.contributor.author	Ramos Gómez, Àngels
dc.date.accessioned	2015-08-20T07:42:15Z
dc.date.available	2015-08-20T07:42:15Z
dc.date.issued	2010
dc.identifier.citation	Tolós Rigueiro, Laura Cabrera Urbán, Daniel Molina Peralta, Raquel Oset Báguena, Eulogio Ramos Gómez, Àngels 2010 Strange meson production at high density and temperature Progress of Theoretical Physics 186 SUPP 384 389
dc.identifier.uri	http://hdl.handle.net/10550/46693
dc.description.abstract	The properties of strange mesons (K, K¯ and K¯∗) in dense matter are studied using a unitary approach in coupled channels for meson-baryon scattering. The kaon-nucleon interaction incorporates s- and p-wave contributions within a chiral model whereas the interaction of K¯∗ with nucleons is obtained in the framework of the local hidden gauge formalism. The in-medium solution for the scattering amplitude accounts for Pauli blocking effects, mean-field binding on baryons, and meson self-energies. We obtain the K, K¯ and K¯∗ (off-shell) spectral functions in the nuclear medium and study their behaviour at finite density, temperature and momentum. We also analyze the energy weighted sum rules of the kaon propagator as a quality test of model calculations. We finally estimate the transparency ratio of the γA→K+K∗−A′ reaction, which we propose as a feasible scenario at present facilities to detect in-medium modifications of the K¯∗ meson.
dc.language.iso	eng
dc.relation.ispartof	Progress of Theoretical Physics, 2010, vol. 186, num. SUPP, p. 384-389
dc.subject	Física
dc.title	Strange meson production at high density and temperature
dc.type	journal article	es_ES
dc.date.updated	2015-08-20T07:42:15Z
dc.identifier.doi	10.1143/PTPS.186.384
dc.identifier.idgrec	063136
dc.rights.accessRights	open access	es_ES